<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
          <!-- 文本输入框 -->
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <!-- 按钮 -->
        <el-col :span="4">
            <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格区域 -->
      <el-table :data="goodslist" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="商品名称" prop="goods_name"></el-table-column>
          <el-table-column label="商品价格（元）" prop="goods_price" width="90px"></el-table-column>
          <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
          <el-table-column label="创建时间" prop="add_time" width="140px">
              <template slot-scope="scope">
                  {{scope.row.add_time | dateFormat}}
              </template>
          </el-table-column>
          <el-table-column label="操作" width="130px">
              <template slot-scope="scope">
                  <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                  <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
              </template>
          </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
        //查询参数对象
        queryInfo:{
            query:'',
            pagenum:1,
            pagesize:10,
        },
        //商品列表
        goodslist:[],
        //总数据条数
        total:0,
    }
  },
  created() {
      this.getGoodsList();
  },
  methods: {
      //根据分页获取对应的商品列表
      async getGoodsList(){
          const {data:res} = await this.$http.get('goods',{params:this.queryInfo});
          if(res.meta.status!==200){
              return this.$message.error('获取商品列表失败');
          }else{
              this.$message.success('获取商品列表成功');
              console.log(res.data);
              this.goodslist=res.data.goods;
              this.total=res.data.total;
          }
      },
      //显示条数改变
      handleSizeChange(newSize){
          this.queryInfo.pagesize=newSize;
          this.getGoodsList();
      },
      //页码改变
      handleCurrentChange(newPage){
          this.queryInfo.pagenum=newPage;
          this.getGoodsList();
      },
      //删除商品
      async removeById(id){
          const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        if(confirmResult!=='confirm'){
            return this.$message.info('已取消删除');
        }else{
            const {data:res}=await this.$http.delete(`goods/${id}`);
            if(res.meta.status!==200){
                return this.$message.error('删除失败');
            }else{
                this.$message.success('删除成功');
                this.getGoodsList();
            }
        }
      },
      //跳转添加商品页面
      goAddpage(){
          this.$router.push('/goods/add')
      },
      //
      
  },
}
</script>

<style scoped>
</style>